This document describes results from the OHI 2018 global assessment. This is mostly an internal document to explore and check results. It also creates the figures used on the website and in other documents.
These data are the OHI scores for the eez regions of 220 countries and territories from 2012 to 2018.
Region 0 is the global average scores, which are calculated using an area-weighted average of the region scores (status, likely future state, and score).
This section describes global patterns in index and goal scores. The overall global score was 70.15.
Average global performance of the 10 goals.
Flower plots for each region can be downloaded from here
Country index scores for 2018. Maps describing goal and index scores can be downloaded from here.
Distribution of country index scores. The median index score among countries was 67.17.
The regions with index scores of 80 or greater are:
| region_name | Index |
|---|---|
| Heard and McDonald Islands | 90.27 |
| Kerguelen Islands | 89.93 |
| Howland Island and Baker Island | 89.60 |
| Pitcairn | 84.92 |
| Germany | 84.86 |
| Macquarie Island | 84.37 |
| Norfolk Island | 84.25 |
| South Georgia and the South Sandwich Islands | 83.86 |
| Aruba | 83.04 |
| Christmas Island | 82.76 |
| New Caledonia | 82.22 |
| Jan Mayen | 81.14 |
| Jarvis Island | 80.69 |
| Phoenix Islands (Kiribati) | 80.67 |
| Madeira | 80.48 |
| Northern Saint-Martin | 80.12 |
| Cocos Islands | 80.00 |
The regions with index scores of 50 or less are:
| region_name | Index |
|---|---|
| Guinea | 49.60 |
| Guinea Bissau | 48.57 |
| Syria | 48.41 |
| Somalia | 48.23 |
| Sierra Leone | 47.53 |
| Democratic Republic of the Congo | 47.15 |
| Lebanon | 46.25 |
| Nicaragua | 45.30 |
| Libya | 42.41 |
| Ivory Coast | 41.37 |
This carpet plot figure (download as high resolution png) provides an overview of the scores from the 2018 assessment. Each row represents a region, the main groupings represent goals, and within each goal there are 6 years of data. Black regions indicate no data.
Don’t try too hard to interpret the results for specific countries/goals/years!!
This plot is good for providing a quick overview of:
This interactive table describes the index and goal scores for the regions in 2018 (or, download csv version):
Trend values are slope estimates from a linear model of scores for each region/goal over the past 7 years. Positive values indicate increasing scores during the past 7 years and negative values indicate decreasing scores.
A color-coded table of trend values for each country is available here (as well as a csv file).
NOTE: Currently, these data include the livelihoods and economies goal but these results should be viewed sceptically because these data were last updated for the 2013 assessment. Many other goals contain components with poor data resolution (i.e., infrequently, or never, measured over time).
The following table provides the global scores (eez area weighted average of region scores) for the Index and goals/subgoals for all years.
Table View
| goal | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|---|---|
| Index | 70.19 | 70.90 | 71.03 | 70.80 | 70.47 | 70.19 | 70.15 |
| Artisanal opportunities | 76.67 | 77.01 | 77.28 | 77.37 | 77.46 | 77.57 | 77.78 |
| Species condition (subgoal) | 83.75 | 83.59 | 83.48 | 83.36 | 83.30 | 83.18 | 83.08 |
| Biodiversity | 87.13 | 87.07 | 87.26 | 87.27 | 87.29 | 87.11 | 87.14 |
| Habitat (subgoal) | 90.54 | 90.57 | 91.07 | 91.22 | 91.30 | 91.07 | 91.22 |
| Coastal protection | 88.53 | 88.04 | 88.02 | 87.81 | 87.44 | 86.64 | 86.32 |
| Carbon storage | 79.16 | 79.09 | 79.12 | 79.12 | 79.16 | 79.18 | 79.19 |
| Clean water | 70.97 | 70.62 | 70.75 | 71.02 | 71.08 | 71.20 | 71.28 |
| Fisheries (subgoal) | 54.52 | 56.14 | 56.12 | 53.69 | 51.74 | 50.63 | 50.96 |
| Food provision | 54.26 | 55.71 | 55.68 | 53.36 | 51.60 | 50.41 | 50.77 |
| Mariculture (subgoal) | 21.25 | 21.68 | 22.42 | 23.74 | 24.45 | 24.65 | 25.17 |
| Iconic species (subgoal) | 66.40 | 67.52 | 67.60 | 67.60 | 66.60 | 66.48 | 66.55 |
| Sense of place | 62.04 | 62.56 | 62.93 | 63.05 | 62.80 | 63.62 | 63.67 |
| Lasting special places (subgoal) | 57.68 | 57.61 | 58.26 | 58.50 | 58.99 | 60.76 | 60.80 |
| Natural products | 51.55 | 51.47 | 51.20 | 49.77 | 48.49 | 45.84 | 45.44 |
| Tourism & recreation | 50.28 | 52.20 | 52.69 | 53.84 | 53.83 | 54.34 | 53.64 |
The following is a very preliminary analysis of how the global scores changed over time. Global index scores decreased by an average -0.07 points per year, with 112 regions having decreasing trends and 109 having increasing trends.
| long_goal | average_change_per_year | p_value | num_rgns_pos_trend | num_rgns_neg_trend | mean_trend | sd_trend |
|---|---|---|---|---|---|---|
| Natural products | -1.15 | 0.0008 | 52 | 86 | -2.03 | 7.45 |
| Fisheries (subgoal) | -0.93 | 0.0124 | 111 | 108 | -0.55 | 1.96 |
| Food provision | -0.90 | 0.0108 | 106 | 111 | -0.58 | 1.99 |
| Coastal protection | -0.36 | 0.0004 | 25 | 81 | -0.09 | 0.53 |
| Species condition (subgoal) | -0.11 | 0.0000 | 31 | 187 | -0.16 | 0.17 |
| Iconic species (subgoal) | -0.09 | 0.4364 | 74 | 139 | -0.09 | 0.34 |
| Index | -0.07 | 0.3315 | 109 | 111 | -0.10 | 0.75 |
| Biodiversity | 0.01 | 0.7958 | 75 | 142 | -0.08 | 0.48 |
| Carbon storage | 0.01 | 0.1095 | 43 | 54 | -0.01 | 0.08 |
| Livelihoods | 0.07 | 0.1136 | 75 | 69 | -0.05 | 1.09 |
| Clean water | 0.09 | 0.0331 | 104 | 105 | -0.01 | 0.86 |
| Habitat (subgoal) | 0.12 | 0.0299 | 77 | 80 | 0.00 | 0.88 |
| Artisanal opportunities | 0.17 | 0.0003 | 181 | 31 | 0.19 | 0.38 |
| Sense of place | 0.25 | 0.0029 | 91 | 123 | 0.11 | 0.95 |
| Livelihoods & economies | 0.38 | 0.1362 | 133 | 42 | 0.25 | 0.94 |
| Tourism & recreation | 0.55 | 0.0141 | 119 | 65 | 0.59 | 2.20 |
| Lasting special places (subgoal) | 0.59 | 0.0014 | 66 | 45 | 0.31 | 1.89 |
| Economies | 0.70 | 0.1392 | 116 | 21 | 0.55 | 1.26 |
| Mariculture (subgoal) | 0.70 | 0.0001 | 54 | 44 | 0.10 | 1.50 |
The global average decreased by an average of -0.07 points per year, but there was a good deal of variation in trend among regions and goals.
The following histogram describes the distribution of trend (e.g., change in score per year) in index scores:
The 10 regions with the largest increases in index scores are:
| country | trend |
|---|---|
| Georgia | 2.33 |
| Latvia | 1.65 |
| Pitcairn | 1.53 |
| Samoa | 1.37 |
| Tonga | 1.34 |
| Bangladesh | 1.30 |
| Solomon Islands | 1.28 |
| Portugal | 1.22 |
| Turks and Caicos Islands | 1.21 |
| Myanmar | 1.19 |
The 10 regions with the largest decreases in index scores are:
| country | trend | |
|---|---|---|
| 211 | Sint Eustatius | -1.55 |
| 212 | Ile Tromelin | -1.69 |
| 213 | Amsterdam Island and Saint Paul Island | -1.73 |
| 214 | Sint Maarten | -1.75 |
| 215 | Syria | -1.84 |
| 216 | Trinidad and Tobago | -1.91 |
| 217 | Marshall Islands | -2.08 |
| 218 | Mayotte | -2.11 |
| 219 | Equatorial Guinea | -2.15 |
| 220 | Eritrea | -3.05 |
A heat map describing change in trend for country and goals (download png here).
This section takes a closer look at the goal/subgoal scores.
Goal/subgoal scores for the 2018 scenario.
| region_name | score |
|---|---|
| Norway | 100.00 |
| United Arab Emirates | 100.00 |
| Qatar | 100.00 |
| Kuwait | 100.00 |
| United States | 100.00 |
| Ireland | 100.00 |
| Singapore | 100.00 |
| Brunei | 100.00 |
| Cayman Islands | 99.62 |
| Bermuda | 99.22 |
| region_name | score | |
|---|---|---|
| 211 | Sao Tome and Principe | 46.22 |
| 212 | Solomon Islands | 45.34 |
| 213 | Cameroon | 45.08 |
| 214 | Benin | 44.29 |
| 215 | Guinea | 44.29 |
| 216 | Madagascar | 43.88 |
| 217 | Comoro Islands | 43.82 |
| 218 | Mozambique | 43.49 |
| 219 | Togo | 43.07 |
| 220 | Liberia | 42.66 |
| region_name | score |
|---|---|
| Northern Saint-Martin | 94.70 |
| Saba | 94.14 |
| Sint Eustatius | 93.15 |
| Australia | 92.29 |
| Montserrat | 92.05 |
| Sint Maarten | 91.96 |
| Taiwan | 91.10 |
| South Korea | 90.95 |
| Grenada | 90.90 |
| Saint Lucia | 90.86 |
| region_name | score | |
|---|---|---|
| 211 | Montenegro | 70.77 |
| 212 | Bosnia and Herzegovina | 70.47 |
| 213 | Italy | 70.22 |
| 214 | Cyprus | 68.59 |
| 215 | Malta | 67.98 |
| 216 | Lebanon | 67.31 |
| 217 | Syria | 67.15 |
| 218 | Libya | 63.09 |
| 219 | Algeria | 63.03 |
| 220 | Monaco | 60.11 |
| region_name | score |
|---|---|
| Heard and McDonald Islands | 100 |
| Kerguelen Islands | 100 |
| Howland Island and Baker Island | 100 |
| Pitcairn | 100 |
| Macquarie Island | 100 |
| Norfolk Island | 100 |
| South Georgia and the South Sandwich Islands | 100 |
| Clipperton Island | 100 |
| South Korea | 100 |
| Prince Edward Islands | 100 |
| region_name | score | |
|---|---|---|
| 209 | Ivory Coast | 62.49 |
| 210 | Senegal | 62.34 |
| 211 | Dominica | 62.03 |
| 212 | Belize | 61.32 |
| 213 | Iceland | 60.91 |
| 214 | Poland | 59.27 |
| 215 | Sierra Leone | 55.94 |
| 216 | Nigeria | 54.78 |
| 217 | Bosnia and Herzegovina | 49.26 |
| 218 | Jan Mayen | 37.62 |
| region_name | score |
|---|---|
| Howland Island and Baker Island | 100 |
| Pitcairn | 100 |
| Germany | 100 |
| Phoenix Islands (Kiribati) | 100 |
| Wallis and Futuna | 100 |
| Estonia | 100 |
| Netherlands | 100 |
| Denmark | 100 |
| British Indian Ocean Territory | 100 |
| Tuvalu | 100 |
| region_name | score | |
|---|---|---|
| 158 | Liberia | 34.56 |
| 159 | Ivory Coast | 32.48 |
| 160 | Sierra Leone | 31.55 |
| 161 | Guinea | 31.21 |
| 162 | Senegal | 30.38 |
| 163 | Nicaragua | 30.13 |
| 164 | Guinea Bissau | 30.10 |
| 165 | Democratic Republic of the Congo | 29.83 |
| 166 | Dominica | 26.53 |
| 167 | Belize | 23.57 |
| region_name | score |
|---|---|
| Germany | 100 |
| Northern Saint-Martin | 100 |
| Seychelles | 100 |
| Estonia | 100 |
| Netherlands | 100 |
| Denmark | 100 |
| Russia | 100 |
| Puerto Rico and Virgin Islands of the United States | 100 |
| Morocco | 100 |
| French Guiana | 100 |
| region_name | score | |
|---|---|---|
| 139 | Liberia | 34.50 |
| 140 | Senegal | 33.57 |
| 141 | Guinea | 32.81 |
| 142 | Sierra Leone | 32.61 |
| 143 | Ivory Coast | 32.39 |
| 144 | Guinea Bissau | 30.37 |
| 145 | Democratic Republic of the Congo | 29.79 |
| 146 | Barbados | 26.97 |
| 147 | Dominica | 26.70 |
| 148 | Nicaragua | 9.76 |
| region_name | score |
|---|---|
| Heard and McDonald Islands | 99.71 |
| Falkland Islands | 98.96 |
| Bouvet Island | 98.91 |
| South Georgia and the South Sandwich Islands | 98.89 |
| Kerguelen Islands | 98.78 |
| Jarvis Island | 98.38 |
| Macquarie Island | 98.16 |
| Phoenix Islands (Kiribati) | 97.97 |
| Howland Island and Baker Island | 97.91 |
| Crozet Islands | 96.69 |
| region_name | score | |
|---|---|---|
| 211 | China | 29.76 |
| 212 | Slovenia | 28.16 |
| 213 | Nigeria | 28.10 |
| 214 | Gilbert Islands (Kiribati) | 27.96 |
| 215 | Monaco | 24.45 |
| 216 | Bangladesh | 23.67 |
| 217 | India | 22.70 |
| 218 | Benin | 16.67 |
| 219 | Gibraltar | 16.14 |
| 220 | Togo | 15.08 |
| region_name | score |
|---|---|
| Clipperton Island | 94.20 |
| Heard and McDonald Islands | 93.25 |
| Kerguelen Islands | 91.40 |
| Pitcairn | 89.10 |
| Estonia | 86.80 |
| Finland | 85.95 |
| Howland Island and Baker Island | 85.38 |
| Wake Island | 84.02 |
| Latvia | 83.29 |
| Sierra Leone | 78.03 |
| region_name | score | |
|---|---|---|
| 211 | Guyana | 15.99 |
| 212 | Sint Eustatius | 15.62 |
| 213 | Cambodia | 14.79 |
| 214 | Madagascar | 13.37 |
| 215 | Somalia | 13.04 |
| 216 | Haiti | 12.79 |
| 217 | Samoa | 12.46 |
| 218 | Vietnam | 11.82 |
| 219 | Myanmar | 10.95 |
| 220 | North Korea | 10.16 |
| region_name | score |
|---|---|
| New Zealand | 100.00 |
| Norway | 100.00 |
| Chile | 100.00 |
| Ecuador | 100.00 |
| Iceland | 100.00 |
| Faeroe Islands | 100.00 |
| China | 100.00 |
| South Korea | 97.06 |
| Canada | 75.27 |
| Russia | 72.02 |
| region_name | score | |
|---|---|---|
| 191 | Dominica | 0 |
| 192 | Guinea | 0 |
| 193 | Guinea Bissau | 0 |
| 194 | Syria | 0 |
| 195 | Somalia | 0 |
| 196 | Sierra Leone | 0 |
| 197 | Democratic Republic of the Congo | 0 |
| 198 | Lebanon | 0 |
| 199 | Libya | 0 |
| 200 | Ivory Coast | 0 |
| region_name | score |
|---|---|
| Finland | 95.83 |
| Latvia | 95.45 |
| Poland | 95.45 |
| Lithuania | 95.45 |
| Estonia | 95.00 |
| Denmark | 90.27 |
| Germany | 89.84 |
| Sweden | 89.26 |
| Norfolk Island | 88.26 |
| Australia | 84.95 |
| region_name | score | |
|---|---|---|
| 211 | Crozet Islands | 51.34 |
| 212 | Amsterdam Island and Saint Paul Island | 51.06 |
| 213 | Prince Edward Islands | 50.58 |
| 214 | Jordan | 50.34 |
| 215 | Cambodia | 48.73 |
| 216 | Bahrain | 48.17 |
| 217 | Iraq | 46.99 |
| 218 | Bouvet Island | 44.70 |
| 219 | Heard and McDonald Islands | 44.69 |
| 220 | Monaco | 36.14 |
| region_name | score |
|---|---|
| Heard and McDonald Islands | 100 |
| Kerguelen Islands | 100 |
| Howland Island and Baker Island | 100 |
| Germany | 100 |
| Macquarie Island | 100 |
| Norfolk Island | 100 |
| South Georgia and the South Sandwich Islands | 100 |
| Jan Mayen | 100 |
| Jarvis Island | 100 |
| Phoenix Islands (Kiribati) | 100 |
| region_name | score | |
|---|---|---|
| 211 | Saint Helena | 0 |
| 212 | Togo | 0 |
| 213 | Gilbert Islands (Kiribati) | 0 |
| 214 | Bahrain | 0 |
| 215 | Sudan | 0 |
| 216 | Benin | 0 |
| 217 | Iraq | 0 |
| 218 | Eritrea | 0 |
| 219 | Syria | 0 |
| 220 | Libya | 0 |
| region_name | score |
|---|---|
| New Caledonia | 99.98 |
| French Polynesia | 98.03 |
| Italy | 95.63 |
| Bangladesh | 95.01 |
| Indonesia | 92.61 |
| Philippines | 92.37 |
| South Korea | 90.19 |
| Latvia | 89.88 |
| North Korea | 83.05 |
| Cuba | 82.85 |
| region_name | score | |
|---|---|---|
| 129 | Mayotte | 0 |
| 130 | Brunei | 0 |
| 131 | Saint Lucia | 0 |
| 132 | Equatorial Guinea | 0 |
| 133 | Sao Tome and Principe | 0 |
| 134 | Algeria | 0 |
| 135 | Republique du Congo | 0 |
| 136 | Eritrea | 0 |
| 137 | Dominica | 0 |
| 138 | Libya | 0 |
| region_name | score |
|---|---|
| Aruba | 100 |
| Northern Saint-Martin | 100 |
| Antigua and Barbuda | 100 |
| New Zealand | 100 |
| Bahamas | 100 |
| Portugal | 100 |
| Seychelles | 100 |
| Turks and Caicos Islands | 100 |
| Curacao | 100 |
| Montserrat | 100 |
| region_name | score | |
|---|---|---|
| 191 | Sudan | 1.95 |
| 192 | Nigeria | 1.89 |
| 193 | Democratic Republic of the Congo | 0.42 |
| 194 | Yemen | 0.00 |
| 195 | Iran | 0.00 |
| 196 | North Korea | 0.00 |
| 197 | Iraq | 0.00 |
| 198 | Syria | 0.00 |
| 199 | Somalia | 0.00 |
| 200 | Libya | 0.00 |
Annual change in goal/subgoal scores calculated using a linear regression on scores from 2012 to 2018.
To obtain a more complete picture of which regions are doing well and which are doing poorly we compared the average index scores (averaged over 2012 to 2018) and the trends for each region.
Of most concern are regions that have poor scores and declining trends: Eritrea, Somalia, Ivory Coast, Nicaragua, and Lebanon.
The following is an interactive plot (region names are visible when hovering over the points) showing the relationship between average index scores and trend. The horizontal line represents the 0 trend and the vertical line is the average of the average index scores.
The following is a comparison of the global status scores generated for the 2017 scenario by this year’s assessment vs. last year’s assessment.
If the models and source data remain the same, these scores should be exactly the same. Differences indicate changes in methods or source data.
These changes do not reflect changes in actual system health!
We made a few changes to some goals, such as the addition of edible seaweed species to Mariculture and removal of edible seaweed species from Natural Products. Furthermore we changed the data source used for Fisheries from SAUP to Watson. We also had fairly large changes to how we process species data.
| long_goal | future | pressures | resilience | score | status | trend |
|---|---|---|---|---|---|---|
| Artisanal opportunities | -0.4954545 | 1.2311364 | -1.6782273 | -0.2939545 | -0.0918182 | -0.0000455 |
| Biodiversity | -1.8171818 | NaN | NaN | -4.0684545 | -6.3202727 | 0.0853636 |
| Carbon storage | -0.0735811 | 0.3076351 | 0.0475676 | -0.0373649 | 0.0000000 | 0.0000000 |
| Clean water | -1.3482727 | 0.5300000 | -0.2063636 | -1.5169091 | -1.6850455 | 0.0071364 |
| Coastal protection | 0.4400599 | 0.8816471 | 0.0984706 | 0.4493413 | 0.4585030 | 0.0148993 |
| Economies | -0.1488235 | 0.9010900 | -0.2546364 | -0.0739706 | 0.0000000 | 0.0000000 |
| Fisheries (subgoal) | -0.5888182 | 0.7211364 | -2.9127273 | -0.1580909 | 0.2731818 | -0.0213182 |
| Food provision | -0.5067123 | NaN | NaN | -0.0638356 | 0.3789498 | -0.0230137 |
| Habitat (subgoal) | -0.4005046 | -0.3943119 | -2.3463761 | -0.3071560 | -0.2144037 | -0.0005556 |
| Iconic species (subgoal) | -0.8225455 | 0.2761364 | -3.0646364 | -0.1530000 | 0.5159091 | -0.0182791 |
| Index | 0.4667727 | NA | NA | 0.0833182 | NA | NA |
| Lasting special places (subgoal) | 1.9970909 | 0.2061818 | -0.2063182 | 1.8979545 | 1.7989545 | 0.0203636 |
| Livelihoods | -0.0564706 | 0.2798104 | -0.1883182 | -0.0279902 | -0.0001961 | -0.0001471 |
| Livelihoods & economies | -0.1025000 | NaN | NaN | -0.0518627 | 0.0000980 | -0.0010294 |
| Mariculture (subgoal) | 0.9504000 | 0.2067727 | -0.2065000 | 0.8479200 | 0.7444800 | -0.0067200 |
| Natural products | -0.8830370 | 1.8421678 | -2.1402797 | -1.6939259 | -2.5044444 | 0.0351111 |
| Sense of place | 0.5871364 | NaN | NaN | 0.8722727 | 1.1574545 | 0.0017273 |
| Species condition (subgoal) | -3.1311818 | 0.6495000 | 0.1487727 | -7.6876818 | -12.2450000 | 0.1684091 |
| Tourism & recreation | 7.3245500 | 0.4002727 | -0.2063636 | 5.7404500 | 4.1567500 | 0.1499500 |
The following interactive plot provides an overview of how the 2017 scenario scores changed between the 2017 and 2018 assessment for all goals and dimensions.
Suggestions?
